#include "yaml-cpp/ostream_wrapper.h"

#include <algorithm>
#include <cstring>
#include <iostream>

namespace YAML
{
	ostream_wrapper::ostream_wrapper() : m_pStream(0), m_pos(0), m_row(0), m_col(0), m_comment(false)
	{
	}

	ostream_wrapper::ostream_wrapper(std::ostream& stream) : m_pStream(&stream), m_pos(0), m_row(0), m_col(0), m_comment(false)
	{
	}

	ostream_wrapper::~ostream_wrapper()
	{
	}

	void ostream_wrapper::write(const std::string& str)
	{
		if (m_pStream) {
			m_pStream->write(str.c_str(), str.size());
		}
		else {
			m_buffer.resize(std::max(m_buffer.size(), m_pos + str.size() + 1));
			std::copy(str.begin(), str.end(), &m_buffer[m_pos]);
		}

		for (std::size_t i = 0; i < str.size(); i++)
			update_pos(str[i]);
	}

	void ostream_wrapper::write(const char *str, std::size_t size)
	{
		if (m_pStream) {
			m_pStream->write(str, size);
		}
		else {
			m_buffer.resize(std::max(m_buffer.size(), m_pos + size + 1));
			std::copy(str, str + size, &m_buffer[m_pos]);
		}

		for (std::size_t i = 0; i < size; i++)
			update_pos(str[i]);
	}

	void ostream_wrapper::update_pos(char ch)
	{
		m_pos++;
		m_col++;

		if (ch == '\n') {
			m_row++;
			m_col = 0;
			m_comment = false;
		}
	}
}